Hello @Flood and Flood's wife , Thanks for your reply! Configuration: - Version of operating system: Windows 10 Pro, 64-bit - Version of Kaspersky: Kaspersky Internet Security 21.3.10.391 This alert generates my own written Application, but when I install it not from my custom code (but by clicking .exe) no issues occur. In KIS Reports all that is said about Application: File Not processed Object not processed Not processedBest regards, Tanya